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https://issues.apache.org/jira/browse/CASSANDRA-1894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12974419#action_12974419
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Jonathan Ellis edited comment on CASSANDRA-1894 at 12/22/10 5:35 PM:
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Requests don't back up in ConsistencyChecker the way they used to in mutation 
or read stages: it's already bounded to exactly RPC_TIMEOUT's worth of activity.

      was (Author: jbellis):
    Requests don't back up in ConsistencyChecker the way they do in mutation or 
read stages: it's already bounded to exactly RPC_TIMEOUT's worth of activity.
  
> Consistency manager is unbounded
> --------------------------------
>
>                 Key: CASSANDRA-1894
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1894
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.6.8
>            Reporter: Brandon Williams
>            Priority: Minor
>             Fix For: 0.6.9
>
>
> If a lot of reads are being performed at CL.ONE, and a replica node is 'sick' 
> (that is, dying or going down, but the FD has not marked it down yet) then an 
> unbounded amount of RR requests can back up in the consistency manager.  It 
> is probably better to cap this queue, and drop further RR requests, rather 
> than allow it to exert GC pressure.

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